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Cheap flights from Seattle to Ireland from €187

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Ireland departing on 14/4. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags
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Cheap return flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
15:55 - 09:25
SEA
-
DUB
33h 30m
1 stop
Scandinavian Airlines Logo
12:40 - 13:45
DUB
-
SEA
33h 05m
1 stop
€421Scandinavian Airlines
Fri, 21 Aug - Mon, 31 Aug
Scandinavian Airlines Logo
15:55 - 09:25
SEA
-
DUB
33h 30m
1 stop
Scandinavian Airlines Logo
19:50 - 13:45
DUB
-
SEA
25h 55m
2 stops
€421Scandinavian Airlines
Fri, 21 Aug - Mon, 31 Aug
Scandinavian Airlines Logo
15:55 - 10:25
SEA
-
DUB
34h 30m
2 stops
Scandinavian Airlines Logo
20:00 - 13:45
DUB
-
SEA
25h 45m
2 stops
€424Scandinavian Airlines
Sat, 15 Aug - Sat, 22 Aug
United Airlines Logo
05:07 - 07:30
SEA
-
SNN
18h 23m
2 stops
United Airlines Logo
09:30 - 22:59
SNN
-
SEA
21h 29m
2 stops
€486United Airlines
Wed, 19 Aug - Mon, 31 Aug
United Airlines Logo
07:00 - 10:15
SEA
-
SNN
19h 15m
2 stops
United Airlines Logo
12:30 - 22:56
SNN
-
SEA
18h 26m
2 stops
€494United Airlines
Wed, 8 Apr - Wed, 15 Apr
Aer Lingus Logo
19:10 - 20:35
SEA
-
SNN
17h 25m
2 stops
Aer Lingus Logo
21:15 - 17:10
SNN
-
SEA
27h 55m
2 stops
€542Aer Lingus
Wed, 19 Aug - Mon, 31 Aug
Multiple Airlines Logo
18:40 - 14:40
SEA
-
ORK
36h 00m
1 stop
Multiple Airlines Logo
17:10 - 16:30
ORK
-
SEA
31h 20m
1 stop
€549Multiple Airlines
Mon, 30 Mar - Tue, 7 Apr
Aer Lingus Logo
21:05 - 19:25
SEA
-
SNN
15h 20m
2 stops
Aer Lingus Logo
21:15 - 17:10
SNN
-
SEA
51h 55m
2 stops
€552Aer Lingus
Wed, 25 Mar - Wed, 1 Apr
Delta Logo
07:15 - 10:20
SEA
-
ORK
19h 05m
2 stops
Delta Logo
06:15 - 16:30
ORK
-
SEA
18h 15m
1 stop
€554Delta
Wed, 8 Apr - Wed, 15 Apr
Delta Logo
07:15 - 10:20
SEA
-
ORK
19h 05m
2 stops
Delta Logo
10:50 - 21:49
ORK
-
SEA
18h 59m
2 stops
€563Delta
Wed, 8 Apr - Wed, 15 Apr

Scandinavian Airlines flights from Seattle to Ireland

Our best Scandinavian Airlines deals on Seattle to Ireland flight tickets
Scandinavian Airlines
21 Aug
SEA15:55Seattle/Tacoma Intl
33h 30m
1 stop
DUB09:25Dublin
31 Aug
DUB12:40Dublin
33h 05m
1 stop
SEA13:45Seattle/Tacoma Intl
€420
Scandinavian Airlines
21 Aug
SEA15:55Seattle/Tacoma Intl
33h 30m
1 stop
DUB09:25Dublin
31 Aug
DUB19:50Dublin
25h 55m
2 stops
SEA13:45Seattle/Tacoma Intl
€421
Scandinavian Airlines
15 Aug
SEA15:55Seattle/Tacoma Intl
34h 30m
2 stops
DUB10:25Dublin
22 Aug
DUB20:00Dublin
25h 45m
2 stops
SEA13:45Seattle/Tacoma Intl
€424

Icelandair flights from Seattle to Ireland

Our best Icelandair deals on Seattle to Ireland flight tickets
Icelandair
29 Apr
SEA15:40Seattle/Tacoma Intl
13h 35m
1 stop
DUB13:15Dublin
13 May
DUB12:15Dublin
16h 25m
1 stop
SEA20:40Seattle/Tacoma Intl
€478
Icelandair
21 Apr
SEA15:40Seattle/Tacoma Intl
11h 25m
1 stop
DUB11:05Dublin
28 Apr
DUB14:15Dublin
11h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
€485
Icelandair
15 Apr
SEA15:40Seattle/Tacoma Intl
13h 35m
1 stop
DUB13:15Dublin
28 Apr
DUB14:15Dublin
11h 40m
1 stop
SEA17:55Seattle/Tacoma Intl
€492

momondo Fare Finder

 
Customise your flight search to find flights from Seattle to Ireland that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 13,528 searches. Data last updated 25 February 2026.
Use the filters below to find and compare flights from Seattle to Ireland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 21/8

15:55-09:25

1 stop33h 30m

Dublin

Mon 31/8

12:40-13:45

1 stop33h 05m

€420

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Fri 21/8

15:55-09:25

1 stop33h 30m

Dublin

Mon 31/8

19:50-13:45

2 stops25h 55m

€421

SeattleDublin

SEA - DUB

SEADUB

Seattle/Tacoma Intl

Sat 15/8

15:55-10:25

2 stops34h 30m

Dublin

Sat 22/8

20:00-13:45

2 stops25h 45m

€424

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 19/8

05:07-07:30

2 stops18h 23m

Shannon

Mon 31/8

09:30-22:59

2 stops21h 29m

€486

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 8/4

07:00-10:15

2 stops19h 15m

Shannon

Wed 15/4

12:30-22:56

2 stops18h 26m

€494

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 19/8

19:10-20:35

2 stops17h 25m

Shannon

Mon 31/8

21:15-17:10

2 stops27h 55m

€542

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Mon 30/3

18:40-14:40

1 stop36h 00m

Cork

Tue 7/4

17:10-16:30

1 stop31h 20m

€549

SeattleShannon

SEA - SNN

SEASNN

Seattle/Tacoma Intl

Wed 25/3

21:05-19:25

2 stops15h 20m

Shannon

Wed 1/4

21:15-17:10

2 stops51h 55m

€552

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 8/4

07:15-10:20

2 stops19h 05m

Cork

Wed 15/4

06:15-16:30

1 stop18h 15m

€554

SeattleCork

SEA - ORK

SEAORK

Seattle/Tacoma Intl

Wed 8/4

07:15-10:20

2 stops19h 05m

Cork

Wed 15/4

10:50-21:49

2 stops18h 59m

€563

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Ireland from

How to get the cheapest flight ticket from Seattle to Ireland

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Ireland?

The month of January is another great option to travel to Ireland, with average flight prices from Seattle averaging around €412.

What is the cheapest Seattle/Tacoma Intl to Ireland flight route?

Fly from Seattle/Tacoma Intl to Dublin for the best Seattle/Tacoma Intl - Ireland flight prices

How far in advance should I book a flight to Ireland?

You are more likely to see cheaper flights to Ireland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Ireland for around €538 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Ireland from Seattle for as low as €479 on momondo.

What cabin class options are available on Seattle/Tacoma Intl to Ireland flights?

There is only 1 cabin class available to choose from on Seattle/Tacoma Intl to Ireland flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Ireland flights?

You could potentially save up to 2% on your flight if you consider stops on a Seattle to Ireland flight.

Cheap Seattle to Ireland flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Ireland

Fastest flight time

9h 05m

Direct flights

Mon, Tue, Wed, Thu, Sat and Sun

Airports in Ireland

77 airports
The fastest flight from Seattle to Ireland takes 9h 05m
Direct flights go from Seattle to Ireland on Monday, Tuesday, Wednesday, Thursday, Saturday and Sunday. There are no airlines offering direct flights..
There are 77 airports in Ireland. From Seattle there are direct flights to Dublin (DUB).
Search flight deals

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Ireland?

    Prices for flights from Seattle/Tacoma Intl Airport to Ireland are updated daily.

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Ireland?

    The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and stopovers. It is recommended that you verify with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Ireland.

  • What documentation or ID do you need to fly to Ireland?

    The travel and health documents you'll need for your trip to Ireland may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's licence and a passport that is valid for six months after your intended arrival at Ireland. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Ireland?

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Ireland?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Ireland for you.

Can I find flights from Seattle to Ireland with flexible booking policies on momondo?

momondo does allow users to show only those flights to Ireland from Seattle which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Seattle to Ireland?

momondo helps you find the best flight between Seattle and Ireland by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Seattle to Ireland right now. Can momondo alert me if prices change?

Price alerts on flights to Ireland from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

An easier way to manage your Ireland trip

We make it super easy to schedule, organise and travel with friends or family. Trips is free – and available to use no matter where you book.
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Find better results for your trip to Ireland

Popular Cities in Ireland

Popular flights according to clicks in the last 7 days on momondo
Flights to Dublinfrom €37
Flights to Corkfrom €77
Flights to Shannon, Clarefrom €78
Flights to Donegalfrom €72
Flights to Milltown (Kerry)from €37